Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A pipeline condition analyzer comprising A. pigging apparatus for isolating a segment of pipe as it moves through the pipe, B. a pressure detector on board the pig for sending the pressure in the isolated pipe segment and developing an electrical signal proportional thereto, C. and means on board the pig for continuously recording the pressure signal on a recording medium so as to develop a pressure profile for the pipeline, D. said pigging apparatus including 1. a capsule containing the pressure detector and recorder and whose cross section is smaller than the smallest pipe whose condition is to be analyzed, and 2. a removable sleeve encircling the capsule, the opposite ends of the sleeve having outwardly projecting seals arranged for sealing engagement with the interior wall of the pipe whose condition is to be analyzed.
Claim 2
Dependent Claim
136 words
A pipeline condition analyzer comprising A. pigging apparatus for isolating a segment of pipe as it moves through the pipe, B. a pressure detector on board the pig for sending the pressure in the isolated pipe segment and developing an electrical signal proportional thereto, C. and means on board the pig for continuously recording the pressure signal on a recording medium so as to develop a pressure profile for the pipeline, D. said pigging apparatus including 1. a capsule containing the pressure detector and recorder and whose cross section is smaller than the smallest pipe whose condition is to be analyzed, and 2. a removable sleeve encircling the capsule, the opposite ends of the sleeve having outwardly projecting seals arranged for sealing engagement with the interior wall of the pipe whose condition is to be analyzed.
Claim 3
Dependent Claim
33 words
a removable sleeve encircling the capsule, the opposite ends of the sleeve having outwardly projecting seals arranged for sealing engagement with the interior wall of the pipe whose condition is to be analyzed.
Claim 4
Dependent Claim
33 words
a removable sleeve encircling the capsule, the opposite ends of the sleeve having outwardly projecting seals arranged for sealing engagement with the interior wall of the pipe whose condition is to be analyzed.
Claim 5
Dependent Claim
26 words
The analyzer defined in claim 1 wherein the signal recorded on the medium is a tone which is modulated by the signal from the pressure detector.
Claim 6
Dependent Claim
21 words
The analyzer defined in claim 2 wherein the recording means is a tape recorder arranged to record the frequency modulated signal.
Claim 7
Dependent Claim
28 words
The analyzer defined in claim 1 A. wherein the capsule is composed of two axially separable sections, and B. further including means for locking the two sections together.
Claim 8
Dependent Claim
43 words
The analyzer defined in claim 1 and further including A. display apparatus, B. means for playing back the signals on the recording medium, and C. means for applying the signals to the display apparatus so that the apparatus displays the pipe pressure profile.
Claim 9
Dependent Claim
48 words
The analyzer defined in claim 5 and further including A. means responsive to transients in the signal being played back by the playback means, B. alarm means, and C. means for actuating the alarm means whenever the transients detected by the transient responsive means exceed a selected value.